Spot Shadow:
A System for Manipulating Shadows in Spatial Design
Slanting Shadow:
Changing Invisible Shadow Shapes by Rotation for Expanding Shadowgraph Experience
Restive Shadow:
Animating Invisible Shadows for Expanding Shadowgraph Experience
Layered Shadow:
Multiplexing Invisible Shadow Using Infrared Lights with Different Wavelengths
Shadow++:
A System for Generating Artificial Shadows Based on Object Movement
A Nonluminous Display
Using Fur to Represent Different Shades of Color
Haconiwa:
A Toolkit for Introducing Novice Users to Electronic Circuits